Clear-Com HX System Frames - Manual (Page 65)

Under normal operating conditions, the red front-panel alarm lights stay off, while the
green power supply lights stay on continuously.
Note:
The XP type power supplies (part 740101Z) may need to be adjusted if E-QUE, E-FIB,
IVC-32 or LMC-64 interfaces are installed. Power-One power supply units (part 720379Z)
should not be adjusted.
5.8.1 Conditions that cause an alarm
The following conditions trigger an alarm:
• If any of the voltages produced by the first power supply unit fall below normal levels.
• If any of the voltages produced by the second power supply unit fall below normal
levels.
• If an internal matrix alarm condition activates a matrix relay to turn on an external
alarm.
• If the active CPU card exceeds a temperature threshold.
• If either of the CPU cards is removed from the matrix.
• If either of the matrix’s two cooling fans stop operating.
• If the temperature inside the Eclipse matrix exceeds a set threshold.
5.8.2 Main alarm light
An alarm condition triggers the following events:
• The
red main alarm light flashes.
• The matrix’s internal alarm buzzer sounds.
Any installed alarm relay outputs switch to active (the normally open contact closes and the
normally closed contact opens). When the alarm relay activates, it can cause an externally
connected device like a light or buzzer to switch on.
One of the six auxiliary red alarm lights may go on, to more precisely indicate the source
of the alarm condition (see 5.7.5 Auxiliary alarm lights ).
5.8.3 Alarm Reset button
When the alarm reset button is pressed the following events take place, even if the alarm
condition has not been corrected:
The internal audible alarm buzzer stops buzzing.
Any wired relay contacts return to their inactive state. If these relays are connected to
external alarm lights or alarm buzzers, those lights or buzzers shut off.
65 Eclipse HX-Omega User Guide